Re: [PATCH 18/20] USB: Add Vendor/Product ID for new CDMA U727 to option driver

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On Sat, Mar 21, 2009 at 09:43:05PM +0530, Shivdas Gujare wrote:
> Hi Greg,
> Curious to know, Will this patch affect normal operation of U727
> modem's already working with Linux.

Have you tried it?

> This is because, Novatel Wireless U727(and many other modem's) support
> ZeroCD install feature.
> and it enumerates with VID=0x1410 and PID=0x5010 combination.
> So, to switch to modem mode, you needs to do "sudo eject /media/cdrom"
> (It could be /dev/sr0, or /dev/sr1 ...etc. )
> and U727 will re-enumerate as a modem with VID=0x1410 and PID=0x4100,
> showing /dev/ttyUSB0. which is already supported with option.c
> You may not needs to "eject /dev/sr0" always, and can be automated
> with udev and with some distributions it may detect as a modem in
> first try.

Can you try it and see what happens?  Dirk said this was needed in order
to get his device to work, if you have one that this patch breaks, then
we need to work out the differences between the devices to see how to
resolve the issue.

thanks,

greg k-h
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